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2001MNRAS.324.1074D - Mon. Not. R. Astron. Soc., 324, 1074-1086 (2001/July-2)
Radially truncated galactic discs.
DE GRIJS R., KREGEL M. and WESSON K.H.
Abstract (from CDS):
The discs of our sample galaxies are truncated at similar radii on either side of their centres. With the possible exception of the disc of ESO 416-G25, it appears that the truncations in our sample galaxies are closely symmetric, in terms of both their sharpness and the truncation length. However, the truncations occur over a larger region and not as abruptly as found in previous studies.
We show that the truncated luminosity distributions of our sample galaxies, if also present in the mass distributions, comfortably meet the requirements for longevity. The formation and maintenance of disc truncations are probably closely related to stability requirements for galactic discs.
Abstract Copyright: The Royal Astronomical Society
Journal keyword(s): galaxies: formation - galaxies: fundamental parameters - galaxies: photometry - galaxies: spiral - galaxies: structure
Simbad objects: 10
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